Long-term and non-invasive in vivo tracking of DiD dye-labeled human hepatic progenitors in chronic liver disease models

Figure 3 Long-term in vivo tracking of transplanted cells. A: Schematic representation showing the timeline for cell transplantation in mice with chronic liver diseases, imaging, and animal sacrifice; B: In vivo near-infrared (NIR)-fluorescence images (top panel) overlay with X-ray images (lower panel) of mice post-transplantation at indicated time periods; C: NIR-fluorescence image overlay with X-ray image of non-transplanted control mice (hair autofluorescence can be seen); D: Ex vivo imaging of excised livers of non-transplant control mice and transplanted mice at 15 and 80 d post-transplantation.